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Finding the Fourth Proportional to 164,287.20, 226,740.93 and 100,661.89

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Solution

The fourth proportional to 164,287.20, 226,740.93 and 100,661.89 is: 138,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,287.20 : 226,740.93 = 100,661.89 : x
  2. Step 2: Convert to fraction form
    164,287.20/226,740.93 = 100,661.89/x
  3. Step 3: Cross multiply
    164,287.20x = 226,740.93 × 100,661.89
  4. Step 4: Simplify right side
    164,287.20x = 22,824,170,554.16
  5. Step 5: Solve for x
    x = 22,824,170,554.16/164,287.20
  6. Step 6: Final answer
    x = 138,928.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.